Answer: FANMAIL

AnswerCrossword Clue
FANMAILMissive to Madonna, say
FANMAILIt gets sent to stars
FANMAILTransmission to the stars
FANMAILStudio delivery
FANMAILAutograph requests, effusive compliments, etc.
FANMAILTeen idol's sackful
FANMAILAdmiration by post.
FANMAILSecretary's problem.
FANMAILStar's reading matter
FANMAILLetters to stars
FANMAILDon't pass around one thousand letters to movie stars (3,4)
FANMAILLetter from an admirer with cooler armor (3,4)
FANMAILMeans of reaching the stars
FANMAILSackful for a star
FANMAILLetters of approval
FANMAILGushing letters